1 files changed, 0 insertions, 49 deletions
diff --git a/ice40/arch.cc b/ice40/arch.cc
index 6679217a..5c632faa 100644
--- a/ice40/arch.cc
+++ b/ice40/arch.cc
@@ -806,53 +806,4 @@ void Arch::assignCellInfo(CellInfo *cell)
     }
 }
 
-std::unique_ptr<CellInfo> Arch::spliceLUT(CellInfo *ci, IdString portId, bool onlyNonLUTs)
-{
-     auto port = ci->ports[portId];
-
-     NPNR_ASSERT(port.net != nullptr);
-
-
-     // Create pass-through LUT.
-     std::unique_ptr<CellInfo> pt =
-         create_ice_cell(getCtx(), id("ICESTORM_LC"), ci->name.str(this) + "$nextpnr_ice40_pack_pll_lc");
-     pt->params[id("LUT_INIT")] = "255";  // output is always I3
-
-     // Create LUT output net.
-     std::unique_ptr<NetInfo> out_net = std::unique_ptr<NetInfo>(new NetInfo);
-     out_net->name = id(ci->name.str(this) + "$nextnr_ice40_pack_pll_net");
-     out_net->driver.cell = pt.get();
-     out_net->driver.port = id("O");
-     pt->ports.at(id("O")).net = out_net.get();
-
-     // New users of the original cell's port
-     std::vector<PortRef> new_users;
-     for (const auto &user : port.net->users) {
-         if (onlyNonLUTs && user.cell->type == id("ICESTORM_LC")) {
-             new_users.push_back(user);
-             continue;
-         }
-         // Rewrite pointer into net in user.
-         user.cell->ports[user.port].net = out_net.get();
-         // Add user to net.
-         PortRef pr;
-         pr.cell = user.cell;
-         pr.port = user.port;
-         out_net->users.push_back(pr);
-     }
-
-     // Add LUT to new users.
-     PortRef pr;
-     pr.cell = pt.get();
-     pr.port = id("I3");
-     new_users.push_back(pr);
-     pt->ports.at(id("I3")).net = port.net;
-
-     // Replace users of the original net.
-     port.net->users = new_users;
-
-     nets[out_net->name] = std::move(out_net);
-     return pt;
-}
-
 NEXTPNR_NAMESPACE_END